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Crj 900 > Flight Controls > Flashcards

Flight Controls Flashcards

0
Q

Re: multi function spoilers…

Outboard spoilers are referred to as?

Inboard spoilers “. “. “?

A

Outboard spoilers= spoilerons

Inboard spoilers= flight spoilers

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1
Q

Multi function spoilers consist of?

A

Spoilerons and flight spoilers

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2
Q

Multi functional spoilers used for?

A

To assist the ailerons for turn coordination

Also used for ground lift dumping

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3
Q

Rudder travel limiter?

A

The SSCU reduces travel from 33° to 4 as speed increases

Avoids over stressing fuselage at high speeds

Prevents severe Sideslip

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4
Q

During SPLR/STAB IN TEST?

Advisory

A

do not move rudder pedals
Nose wheel steering tiller
Disengage stabilizer trim
Or select any hydraulic pump switch to for auto

Test last up to 60 seconds

SPOST2.. Performed following aircraft power up, once per 50 flight cycles

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8
Q

How many leading-edge slats per wing?

A

3

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9
Q

How many trailing edge flaps?

A

2

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10
Q

What’s drives the flaps?

A

a PDU

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11
Q

What’s commands the PDU to deploy or retract the slats and flaps?

A

The SFECU’s

Slat/flaps electronic control units

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12
Q

If airspeed is too high for selected flap setting?

A

Over speed Clacker

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13
Q

When do we have half speed flaps?

A

When one of the two PDU’s fail

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14
Q

Emergency flap switch selects the flaps to?

A

20°

Actuated by the SFECU

Under 230 kn

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15
Q

Each spoiler is actuated by?

A

A single electro hydraulic PCU

Power control unit

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16
Q

What controls spoiler operation?

A

Spoiler stabilizer control units(SSCU)

2-dual channel

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17
Q

Roll assist is provided by?

A

Multi functional spoilers

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18
Q

Primary flights controls?

A

Ailerons
Rudder
Elevators
Spoilerons

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19
Q

Aileron.. Autopilot is connected to which side?

A

First officer side

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20
Q

How many PCU’s Power the ailerons?

A

2/side

Hydraulic

Mechanically controlled by either control wheel

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21
Q

Function of the flutter dampers?

A

Prevent surface flutter in the event of hydraulic fluid loss at the PCUs during flight

Gust lock function on the ground

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22
Q

If roll disconnect handle is pulled?

A

Unaffected aileron and opposite side spoileron

20 seconds…ROLL SEL
SPOILERON ROLL CAUTION

press ROLL SEL on operable side
( allows use of both spoilerons)

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23
Q

Aileron AP servo connected to?

A

Rt elevator stystem

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24
Q

What automatically controls operation of the spoilers?

A

SSCU’s

Spoiler stabilizer control units

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25
Q

Ailerons..
Operated?

Controlled?

A

Electrically operated

Manually controlled

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26
Q

Control jam of rudder?

A

Pedals remain operable through anti-jam mechanisms

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27
Q

Does operation of the rudder trim cause rudder deflection?

A

No!

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28
Q

Each yaw damper response to inputs from

A

One flight control computer

One yaw damper must be engaged for the autopilot

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29
Q

Stall protection system is connected to which side?

A

Right elevator system

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30
Q

Autopilot is connected to which elevator system?

A

Left elevator system

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31
Q

4 modes to the SSCU

A

Manual trim

Autopilot trim
Auto trim( flaps extended or retracted 0-20 )

Mach trim(for pitch down tendencies when ap disengaged)

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32
Q

How many PCU’s per spoiler?

A

1 PCU /spoiler

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33
Q

When is roll assist used?

A

At low speeds on the downward wing

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34
Q

When aircraft approaches a high angle of attack, The stall protection computer well?

A

Stick shaker

Continuous ignition

Disengage autopilot

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35
Q

To activate the stick pusher?

A

Both switches must be selected to on

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38
Q

Horiz stab trim priority?

A 
Pilot
Copilot
Autopilot
Autotrim
Mach trim
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39
Q

With AP engaged, high rate of horiz trim mvmt occurs when?

A

When. Flaps are extending or retracting

Between 0 and 20 eithe direction

9-17 systems

40
Q

Mach trim oprates when?

A

Hand flying auto pilot off

Above mach .4

To compensate for increasing pitch down tendencies at increasing mach numbers

41
Q

If PCU runaway? Remaining PCU’s?

A

Remaining PCUs override runaway

42
Q

Yaw damps controlled by?

A

FCCs

43
Q

Bute door?

A

Directs airflow over flaps leafing edge vane

44
Q

Btms displayed?

A

Gear and flaps indications

45
Q

How are the ailerons connected

A

The ailerons are directly connected to the control yoke through linkage and police

46
Q

How many aileron Flutter dampers for aileron?

A

1

47
Q

When are Flutter dampers visible on the synoptic page?

A

Only when failed

48
Q

How many yaw dampers needed for the autopilot

A

1

49
Q

Is there a memory item for uncommanded YAW?

A

Yes

50
Q

How many PCU ‘s for spoiler!

A

1

51
Q

How is the aileron trim switch controlled and operated?

A

Electronically controlled

Electronically operated

52
Q

Aileron trim indications on the synoptic page… Color on the ground for neutral position?

In-flight?

A

Indications green for neutral position on the ground

White once airborne regardless of setting

53
Q

Function of Bute doors?

A

Direct air flow over the flaps leading edge then

54
Q

Where are the two gates on the flap lever?

A

8° retraction

20° extension

             ☝🏻
               8

               20
                👇
55
Q

When do the slat flap position indications appear?

A

Flaps out of zero

Or

Landing gear extended

BTMS in red range

56
Q

Is there any to direct linkage for the multifunction spoilers?

A

No

Fly by wire controlled no direct linkage

Electronic. Signals from the SSCU

57
Q

What do the PCUs do?

A

Translate control yoke movements into hydraulic actuation of the ailerons

58
Q

Are the ailerons independent?

A

Can be disconnected by a disconnect handle

59
Q

When the ailerons are disconnected who controls what??

A

Captain controls left aileron and right MFS

FO controls right aileron and left MFS

60
Q

How many yaw dampers needed for autopilot

A

One-yard damper needs to be engaged for the autopilot to engage

61
Q

MFS?

A

Flight spoilers

And

Spoilerons

62
Q

Slowest rate of trim?

A

Mach trim

fastest=pilot manual trim

63
Q

Slats actuated?

A

Electrically(pdu)

64
Q

Bute doors?

A

Direct airflow over flaps leading edge vane

65
Q

Trim clacker??

A

More than 3 seconds

66
Q

Mach trim avail abv?

A

.40

67
Q

Where is the primary feel unit located?

A

First officers rudder pedal assembly

68
Q

Each elevator system is hydraulically powered by how many PCUs

A

3

69
Q

How many stab channels need to be engaged for Mach

trim

A

One channel must be engaged

70
Q

Are the yaw dampers Partof the auto pilot system

A

No

the yaw dampers Are independent from the auto pilot system controlled by the flight control computers

71
Q

The slats flaps And trims are?

A

Electrically controlled and operated

72
Q

Hand flying equals mach trim

A

…

73
Q

SPOST CHECKS

system power on self test

A

Every 50th flight cycle

With all 3 hydr systems pressurized
Both stab trim channels engaged

GREEN ADVISORY MESSAGE

-SPLR/STAB IN TEST

74
Q

TO CONFIG ADVISORY is removed when?

A

Upon airplane rotation

75
Q

Stab trim clacker?

A

More than 3 seconds

76
Q

Emergency flap switch?

A

900-20 slats 20 flaps

700-25 slats 20 flaps

Sys 9-23

77
Q

Emergency flap switch back to normal?

A

Flaps return to flap switch position

9-23

78
Q

Slats flaps indications appear?

A

Slats flaps extended or

Landing gear down or

BTMS red

79
Q

Slats flap indications removed when?

A

BTS normal

Gear up

Slats flaps up

80
Q

When do flaps operate at half speed?

A

Failure of a single PDU or

One SFECU channel

81
Q

Half speed when?

A

Failure of a single PDU or

Loss of one SFECU channel

82
Q

FLT SPLR DEPLOY CAUTION?

A

Thrust levers levers at or above climb detent or

Below 300 feet RA

83
Q

When do we see the Advisor a message TO CONFIG OK

A

When the aircraft is in a safe takeoff configuration

84
Q

When is the takeoff config Advisory message removed

A

Upon airplane rotation

85
Q

If takeoff config warning? When are the warning indications canceled?

A

Correctly positioning the applicable control or

Retarding the thrust levers

86
Q

What is the sequence of events as you approach a stall?

A

Continuous ign then

Stick shaker then

Pusher, Stall switch lights on glare shield Flash red, warbler sounds

87
Q

How can you stop the stick pusher?

A

Pressing and holding either pilots stick push or disconnect switch( AP/SP DISC)

88
Q

How many STALL PTCT PUSHER switches need to be selected on for stick pusher activation?

A

Both!!

Therefore if the SPS incorrectly activates the stick pusher, select either STALL PTCT PUSHER switch to off!!

89
Q

Clacker in reference to the stabilizer trim?

A

Indicates that stabilizer has been in motion for more than three seconds

90
Q

When will we get a takeoff config caution in reference to N1?

A

N1 is greater than 70%

With WOW

TR stowed

Crj 900 (45 decks)

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